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Alexeev081 [22]
3 years ago
14

A pyramid has a square base with side s. The height of the pyramid is 2/3 that of its side. What is the expression for the volum

e of the pyramid?
A) V = 2s^2
B) V = 2s^3
C) V = 2/3s^2
D) V = 2/9s^3
E) V = 1/3s^3


Random answers will be reported!
Mathematics
1 answer:
Temka [501]3 years ago
8 0

Answer:

The correct option is option D

Step-by-step explanation:

The volume of a pyramid is:

V=1/3(B)(H)

Where

B:Base = s^2

H:Height = 2/3s

Then:

V=1/3(B)(H) = 1/3(s^2)(2/3s) = 2/9s^3

The correct option is option D

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The question is incomplete, here is the complete question:

Recall that m(t) = m.(1/2)^t/h for radioactive decay, where h is the half-life. Suppose that a 500 g sample of phosphorus-32 decays to 356 g over 7 days. Calculate the half life of the sample.

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<u>Step-by-step explanation:</u>

The equation used to calculate the half life of the sample is given as:

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where,

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Hence, the half life of the sample of phosphorus-32 is 14.28days^{-1}

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